Only one of them made any visible difference after two weeks.

Why it matters

Going viral tells you something is popular, not that it works. Before spending money, it is worth asking who benefits from the hype and what a plainer alternative would do.

What to keep in mind

  • Read the ingredient list, not the marketing
  • Look for a cheaper version of the same thing
  • Wait a few weeks: most trends do not last

The bottom line

Be curious, and keep your receipt.